@charset "UTF-8";

:root {
  --bg: #12101c;
  --bg-2: #171425;
  --panel: #1d1930;
  --panel-2: #241f3a;
  --line: #322c4c;
  --ink: #f1eefc;
  --muted: #a9a2c6;
  --violet: #6c4cf1;
  --teal: #2ed3c6;
  --shell: 1180px;
  --header-height: 70px;
  --mono: "JetBrains Mono", Consolas, "Courier New", monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-height) + 18px); }
body {
  min-width: 320px;
  margin: 0;
  color: var(--ink);
  background: var(--bg);
  font-family: "Microsoft YaHei", "PingFang SC", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
}
img { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { color: inherit; font: inherit; }
svg { display: block; }
a:focus-visible, button:focus-visible, summary:focus-visible { outline: 3px solid var(--teal); outline-offset: 4px; }
.page-shell { width: min(calc(100% - 48px), var(--shell)); margin: 0 auto; }
.eyebrow {
  display: flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 14px;
  color: var(--teal);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2.2px;
  line-height: 1.4;
}
.eyebrow::before { width: 7px; height: 7px; content: ""; background: var(--teal); transform: rotate(45deg); }

/* header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 60;
  border-bottom: 1px solid var(--line);
  background: rgba(18, 16, 28, .94);
  backdrop-filter: blur(12px);
}
.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(calc(100% - 48px), var(--shell));
  min-height: var(--header-height);
  margin: 0 auto;
  gap: 18px;
}
.brand { display: inline-flex; align-items: center; flex: none; gap: 9px; font-size: 22px; font-weight: 900; letter-spacing: -.4px; }
.brand img { width: 34px; height: 34px; border: 1px solid #3a3360; border-radius: 9px; object-fit: contain; background: #191527; }
.brand-tag { padding: 1px 6px; border: 1px solid #3d5f60; border-radius: 3px; color: var(--teal); font-family: var(--mono); font-size: 8.5px; font-style: normal; letter-spacing: 1px; }
.primary-nav { margin-left: auto; }
.primary-nav ul { display: flex; align-items: center; gap: clamp(12px, 1.9vw, 24px); padding: 0; margin: 0; list-style: none; }
.primary-nav a { display: block; padding: 7px 0; border-bottom: 1px solid transparent; color: #b0a9cb; font-size: 13px; font-weight: 700; }
.primary-nav a:hover { border-bottom-color: var(--teal); color: #fff; }
.nav-actions { display: flex; align-items: center; flex: none; gap: 10px; }
.nav-download {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0 17px;
  border: 1px solid transparent;
  border-radius: 5px;
  background: linear-gradient(100deg, var(--violet), #8b6bff 55%, var(--teal));
  color: #0f1020;
  font-size: 13px;
  font-weight: 900;
  white-space: nowrap;
  transition: filter .18s ease;
}
.nav-download:hover { filter: brightness(1.1); }
.menu-toggle { display: none; width: 40px; height: 40px; padding: 0; border: 1px solid var(--line); border-radius: 5px; background: transparent; cursor: pointer; }
.menu-toggle span { display: block; width: 17px; height: 2px; margin: 5px auto; background: var(--ink); transition: transform .18s ease; }
.menu-toggle[aria-expanded="true"] span:first-child { transform: translateY(3.5px) rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { transform: translateY(-3.5px) rotate(-45deg); }

/* hero: copy + phone with three cards + scene bar */
.hero {
  position: relative;
  overflow: hidden;
  border-bottom: 1px solid var(--line);
  background:
    radial-gradient(520px 320px at 88% 2%, rgba(108, 76, 241, .32), transparent 70%),
    radial-gradient(380px 260px at 2% 88%, rgba(46, 211, 198, .1), transparent 72%),
    linear-gradient(180deg, #191327 0%, var(--bg) 100%);
}
.hero::before {
  position: absolute;
  inset: 0;
  content: "";
  background-image: linear-gradient(115deg, rgba(255, 255, 255, .035) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(80% 70% at 70% 10%, #000, transparent);
  pointer-events: none;
}
.hero-grid {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 430px);
  align-items: center;
  gap: clamp(24px, 4vw, 52px);
  padding: 52px 0 22px;
}
.hero-copy { min-width: 0; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin: 0 0 16px;
  color: #ada3cd;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 1.6px;
}
.hero-kicker b { color: var(--teal); font-size: 10px; letter-spacing: 2px; }
.hero h1 {
  margin: 0;
  font-size: clamp(52px, 7.6vw, 96px);
  font-weight: 900;
  letter-spacing: clamp(-2px, -.5vw, -4px);
  line-height: 1;
}
.hero h1 span { color: var(--teal); }
.hero-subtitle { margin: 16px 0 0; color: #cfc7ea; font-size: clamp(18px, 2vw, 24px); font-weight: 800; line-height: 1.4; }
.hero-subtitle::after { display: inline-block; width: 26px; height: 3px; margin-left: 12px; content: ""; background: linear-gradient(90deg, var(--violet), var(--teal)); vertical-align: 5px; }
.hero-lead { max-width: 450px; margin: 12px 0 0; color: var(--muted); font-size: 14px; }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 18px; margin-top: 24px; }
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  gap: 12px;
  padding: 0 26px;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 14px;
  font-weight: 900;
  transition: transform .18s ease, filter .18s ease;
}
.button-primary { background: linear-gradient(100deg, var(--violet), #8b6bff 58%, var(--teal)); color: #0f1020; box-shadow: 0 14px 30px rgba(108, 76, 241, .3); }
.button-primary:hover { filter: brightness(1.09); transform: translateY(-2px); }
.button-large { min-height: 52px; padding: 0 32px; font-size: 15px; }
.button svg { width: 18px; height: 18px; flex: none; fill: none; stroke: currentColor; stroke-width: 1.9; stroke-linecap: round; stroke-linejoin: round; }
.text-link { color: #c6bde3; border-bottom: 1px dashed #493e73; font-size: 13px; font-weight: 800; }
.text-link span { display: inline-block; margin-left: 5px; color: var(--teal); }

.hero-stage { position: relative; min-width: 0; }
.stage-phone {
  width: min(100%, 252px);
  margin: 0 auto;
  padding: 8px;
  border: 1px solid #3a3460;
  border-radius: 30px;
  background: #161222;
  box-shadow: 0 26px 50px rgba(6, 4, 16, .6), 0 0 0 1px rgba(46, 211, 198, .08);
}
.stage-phone img { width: 100%; height: auto; aspect-ratio: 1080 / 2400; object-fit: cover; object-position: center top; border-radius: 23px; }
.cast-row { position: relative; z-index: 3; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px; width: 100%; max-width: 366px; margin: -58px auto 0; }
.cast-card {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 3px;
  padding: 10px 9px 9px;
  border: 1px solid #3b3461;
  border-radius: 11px;
  background: rgba(23, 20, 37, .95);
  box-shadow: 0 12px 24px rgba(5, 3, 14, .5);
}
.cast-ava { display: inline-flex; align-items: center; justify-content: center; width: 30px; height: 30px; margin-bottom: 2px; border-radius: 9px; color: #fff; font-size: 12px; font-weight: 900; }
.cast-1 { background: linear-gradient(140deg, #4fa3ff, #2b3d8f); }
.cast-2 { background: linear-gradient(140deg, #c8ccd6, #5c6478); }
.cast-3 { background: linear-gradient(140deg, #2ed3c6, #1c6f7d); }
.cast-card b { font-size: 12.5px; font-weight: 900; line-height: 1.3; }
.cast-card small { color: #8f87b0; font-size: 9px; line-height: 1.35; }
.cast-card em { margin-top: 2px; padding: 1px 6px; border-radius: 999px; background: rgba(46, 211, 198, .14); color: var(--teal); font-size: 9px; font-style: normal; }

.scene-bar {
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  padding: 16px 0 34px;
  margin-top: 22px;
  border-top: 1px solid var(--line);
  max-width: 780px;
}
.scene-label { margin-right: 4px; color: #7f769f; font-family: var(--mono); font-size: 10px; letter-spacing: 2px; }
.scene-chip { padding: 4px 13px; border: 1px solid #3a3360; border-radius: 999px; color: #cfc8e6; font-size: 12px; }
.scene-chip:first-of-type { border-color: #4c6f6c; color: var(--teal); }
.scene-hint { margin-left: 4px; color: #6f6790; font-size: 11px; }

/* features: full-width rows */
.features { padding: 72px 0 74px; border-bottom: 1px solid var(--line); background: var(--bg-2); }
.section-heading { margin-bottom: 26px; }
.section-heading h2, .download h2 { margin: 0; font-size: clamp(24px, 2.7vw, 34px); font-weight: 900; letter-spacing: -.7px; line-height: 1.3; }
.section-heading > p:last-child { max-width: 620px; margin: 11px 0 0; color: var(--muted); font-size: 14px; }
.section-heading-split { display: grid; grid-template-columns: minmax(0, 1fr) minmax(200px, 300px); align-items: end; gap: 24px; }
.section-heading-split > p:last-child { margin: 0 0 5px; }
.feature-rows { border-top: 1px solid var(--line); }
.feature-row { display: grid; grid-template-columns: 54px 160px minmax(0, 1fr); align-items: baseline; gap: 14px; padding: 20px 0; border-bottom: 1px solid var(--line); }
.row-no { color: var(--teal); font-family: var(--mono); font-size: 13px; font-weight: 700; letter-spacing: 2px; }
.feature-row h3 { margin: 0; font-size: 17px; font-weight: 900; }
.feature-row p { margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.8; }

/* shots: staggered columns */
.shots { padding: 76px 0 86px; }
.shot-row { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; align-items: start; }
.shot-card { display: flex; flex-direction: column; align-items: center; margin: 0; padding: 9px 9px 0; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); overflow: hidden; }
.shot-card:nth-child(2) { margin-top: 34px; }
.shot-card:nth-child(3) { margin-top: 15px; }
.shot-card img { width: 100%; height: auto; aspect-ratio: 1080 / 2400; object-fit: cover; object-position: center top; border-radius: 7px; background: #131020; }
.shot-card figcaption { display: flex; align-items: baseline; gap: 8px; align-self: stretch; padding: 11px 4px 12px; margin-top: 8px; border-top: 1px solid var(--line); }
.shot-card figcaption b { flex: none; color: var(--teal); font-size: 12px; font-weight: 900; }
.shot-card figcaption span { color: #b8b0d2; font-size: 12px; line-height: 1.6; }

/* faq */
.faq { padding: 70px 0 76px; border-top: 1px solid var(--line); background: var(--bg-2); }
.faq-layout { display: grid; grid-template-columns: minmax(0, .76fr) minmax(0, 1.24fr); gap: clamp(26px, 4vw, 54px); }
.faq-heading { position: sticky; top: calc(var(--header-height) + 26px); align-self: start; }
.faq-list { border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 17px 0; cursor: pointer; list-style: none; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary h3 { margin: 0; font-size: 15px; font-weight: 900; }
.faq-list summary i { position: relative; flex: none; width: 20px; height: 20px; border: 1px solid #403964; border-radius: 4px; transform: rotate(45deg); }
.faq-list summary i::before,
.faq-list summary i::after { position: absolute; top: 50%; left: 50%; width: 8px; height: 1.5px; content: ""; background: var(--teal); transform: translate(-50%, -50%); }
.faq-list summary i::after { transform: translate(-50%, -50%) rotate(90deg); transition: transform .2s ease; }
.faq-list details[open] summary i::after { transform: translate(-50%, -50%) rotate(0); }
.faq-list details p { padding: 0 26px 17px 0; margin: 0; color: var(--muted); font-size: 13.5px; line-height: 1.85; }

/* reviews: three columns */
.reviews { padding: 72px 0 78px; }
.review-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; padding: 0; margin: 0; list-style: none; }
.review-card { display: flex; flex-direction: column; justify-content: space-between; gap: 14px; padding: 18px 17px 15px; border: 1px solid var(--line); border-top: 2px solid rgba(108, 76, 241, .7); border-radius: 6px; background: var(--panel); }
.review-card p { position: relative; margin: 0; color: #c9c2e0; font-size: 13px; line-height: 1.8; }
.review-card p::before { display: block; margin-bottom: 4px; color: rgba(46, 211, 198, .55); font-family: Georgia, serif; font-size: 22px; line-height: .8; content: "“"; }
.review-top { display: flex; align-items: baseline; justify-content: space-between; flex-wrap: wrap; gap: 6px; padding-top: 9px; border-top: 1px dashed #3b3460; }
.review-top b { color: #dcd5f2; font-size: 12px; font-weight: 900; }
.review-top time { color: #7b7298; font-family: var(--mono); font-size: 9.5px; }

/* steps: cards with big numbers */
.steps { padding: 68px 0 74px; border-top: 1px solid var(--line); background: var(--bg-2); }
.step-list { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; padding: 0; margin: 0; list-style: none; }
.step-list li { position: relative; padding: 24px 20px 22px; border: 1px solid var(--line); border-radius: 10px; background: linear-gradient(160deg, rgba(108, 76, 241, .12), transparent 60%), var(--panel); overflow: hidden; }
.step-list b { position: absolute; right: 12px; bottom: -14px; color: rgba(46, 211, 198, .13); font-family: var(--mono); font-size: 66px; font-weight: 700; line-height: 1; }
.step-list h3 { position: relative; margin: 0 0 7px; font-size: 16px; font-weight: 900; }
.step-list p { position: relative; margin: 0; color: var(--muted); font-size: 12.5px; line-height: 1.8; }

/* download: banner with notes in a row */
.download { padding: 30px 0; }
.download-inner {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 24px 40px;
  padding: 40px clamp(22px, 4vw, 48px);
  border: 1px solid #40396a;
  border-radius: 10px;
  background:
    radial-gradient(420px 200px at 92% -10%, rgba(46, 211, 198, .16), transparent 72%),
    linear-gradient(110deg, #241d40, #191527 72%);
}
.download-copy { min-width: 0; }
.download h2 { color: #f7f4ff; }
.download-copy > p:last-child { max-width: 430px; margin: 11px 0 0; color: #aaa1c7; font-size: 13px; }
.download-action { display: flex; flex-direction: column; align-items: flex-end; gap: 12px; }
.download-notes { grid-column: 1 / -1; display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 8px 18px; padding: 16px 0 0; margin: 0; border-top: 1px solid #38305e; list-style: none; }
.download-notes li { color: #8f86ad; font-family: var(--mono); font-size: 10.5px; }
.download-notes li::before { margin-right: 7px; color: var(--teal); content: "▸"; }

/* footer */
.site-footer { padding: 42px 0 50px; border-top: 1px solid var(--line); }
.footer-grid { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 18px 40px; align-items: start; }
.footer-brand strong { font-size: 18px; font-weight: 900; }
.footer-brand p { margin: 4px 0 0; color: var(--muted); font-size: 12px; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 8px 20px; }
.footer-nav a { color: #b3abce; font-size: 12px; }
.footer-nav a:hover { color: var(--teal); }
.footer-meta { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 20px; margin-top: 22px; padding-top: 16px; border-top: 1px solid var(--line); color: var(--muted); font-size: 12px; }
.footer-meta p { margin: 0; }
.footer-meta a { color: var(--muted); }
.disclaimer { grid-column: 1 / -1; margin: 0; color: #7d7599; font-size: 11.5px; line-height: 1.8; }

/* responsive */
@media (max-width: 1000px) {
  .hero-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 360px); }
  .review-list { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 900px) {
  .menu-toggle { display: block; }
  .primary-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    display: none;
    padding: 8px 24px 16px;
    border-bottom: 1px solid var(--line);
    background: var(--bg);
    box-shadow: 0 16px 26px rgba(0, 0, 0, .55);
  }
  .primary-nav.is-open { display: block; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav a { padding: 12px 0; border-bottom: 1px solid var(--line); }
  .hero-grid { grid-template-columns: 1fr; padding: 42px 0 18px; }
  .hero-stage { width: min(100%, 420px); }
  .stage-phone { width: min(100%, 240px); }
  .faq-layout { grid-template-columns: 1fr; }
  .faq-heading { position: static; }
  .feature-row { grid-template-columns: 40px 130px minmax(0, 1fr); gap: 10px; }
  .step-list { grid-template-columns: 1fr; }
  .download-inner { grid-template-columns: 1fr; }
  .download-action { align-items: flex-start; }
  .download-notes { grid-template-columns: 1fr; }
}
@media (max-width: 680px) {
  .page-shell, .nav-shell { width: calc(100% - 30px); }
  .hero h1 { font-size: clamp(44px, 14vw, 62px); }
  .hero-stage { width: 100%; }
  .cast-row { margin: -44px 0 0; }
  .section-heading-split { grid-template-columns: 1fr; gap: 8px; }
  .section-heading-split > p:last-child { margin: 0; }
  .feature-row { grid-template-columns: 32px minmax(0, 1fr); gap: 4px 10px; }
  .feature-row p { grid-column: 2; }
  .shot-row { grid-template-columns: 1fr; gap: 14px; }
  .shot-card:nth-child(2), .shot-card:nth-child(3) { margin-top: 0; }
  .review-list { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}
@media (max-width: 380px) {
  .brand { font-size: 18px; gap: 6px; }
  .brand img { width: 27px; height: 27px; }
  .brand-tag { display: none; }
  .nav-actions { gap: 7px; }
  .nav-download { min-height: 33px; padding: 0 9px; font-size: 11px; }
  .menu-toggle { width: 33px; height: 33px; }
  .hero h1 { font-size: 44px; }
  .hero-subtitle { font-size: 16px; }
  .cast-card { padding: 8px 7px; }
  .cast-card small { font-size: 8.5px; }
  .button { width: 100%; }
  .download-action { width: 100%; }
}